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The Outbreak Of Koi Herpesvirus (Khv) In Koi (Cyprinus Carpio Koi) From Chiang Mai Province, Thailand, Surachai Pikulkaew, Tongkorn Meeyam, Wijit Banlunara
The Outbreak Of Koi Herpesvirus (Khv) In Koi (Cyprinus Carpio Koi) From Chiang Mai Province, Thailand, Surachai Pikulkaew, Tongkorn Meeyam, Wijit Banlunara
The Thai Journal of Veterinary Medicine
Twenty-two sick koi with cumulative mortality showed clinical signs of depression, brachial hemorrhage and necrosis, focal hemorrhage, pale patches and ulcers on the skin. Clinical examination showed the heavy infection by opportunistic organisms such as Dactylogyrus sp., Gyrodactylus sp. and Saprolegnia sp. of the skin, gill and fins. Histopathologically, the gill showed severe acute diffuse necrosis of the branchial epithelial cells and severe diffuse lymphocytic-monocytic interstitial nephritis with necrosis of the tubular epithelial cells were predominantly found in most sick fish. The presence of homogeneous pale basophilic intranuclear viral inclusions was observed. Transmission electron microscopy showed herpesvirus-like particles in the …